Application and comparison of very low frequency electromagnetic and electrical resistivity techniques to investigate a Karstic Region: A case study of EL Hajeb …

L Tarik, A Benamara, M Chaibi, M Tarik, D Hritta… - Journal of Applied …, 2023 - Elsevier
Geophysical methods are widely used to determine subsurface karst structures' depth
because of their risks. However, their qualitative or quantitative interpretations involve a …

A comparative study for the source depth estimation of very low frequency electromagnetic (VLF-EM) signals

A Ebrahimi, N Sundararajan, VR Babu - Journal of Applied Geophysics, 2019 - Elsevier
In general, a quantitative interpretation of geophysical data yields information on the nature
of subsurface structures of geologic interest besides depth of the source and the associated …

Model parameter estimation and its uncertainty for 2-D inclined sheet structure in self-potential data using crow search algorithm

A Haryono, Sungkono, R Agustin, BJ Santosa… - Acta Geodaetica et …, 2020 - Springer
Fracture or fault can control several geological or geophysical events and exploration,
where the fault associated with mineralization or fluid flow can be used as a source for Self …

Mapping the near-surface geoelectrical structure of the Mottled Zone using the very low frequency–electromagnetic method

JA Rajab - Journal of Applied Geophysics, 2021 - Elsevier
Mottled Zones (MZ) in south Levant regions show discrete, varied-dimensional rock complex
exposures and many unexplored areas in the vicinity of the Dead Sea Transform Fault …

Noise-assisted multivariate empirical mode decomposition based emotion recognition

P Özel, A Akan, B Yılmaz - Electrica, 2018 - dergipark.org.tr
DOI: 10.26650/electrica. 2018.00998 Emotion state detection or emotionrecognition cuts
across different disciplines because of the many parametersthat embrace the brain's …

Assessment of Sidoarjo mud flow embankment stability using very low frequency electromagnetic method

Sungkono, Y Feriadi, A Husein, H Prasetyo… - Environmental earth …, 2018 - Springer
The earth on LUSI embankment has a high failure potential due to several factors such as:
seepage, leakage, vertical and horizontal deformation, cracking and fault (discontinuity) …

Application of Multivariate EMD to Improve Quality VLF-EM Data: Synthetic and Fields Data

S Sungkono, AS Bahri, BJ Santosa - Applied Mechanics and …, 2015 - Trans Tech Publ
A method for enhancing VLF˗ EM data based on Multivariate Empirical Mode
Decomposition (EMD) was presented. The noise assisted multivariate empirical mode …

Mapping Underground River Flows in karst Areas with the VLF-EM Method (Case Study of the Krawak Region, Singgahan Tuban)

MS Purwanto, A Susilo, AS Bahri, A Naba… - … Series: Earth and …, 2024 - iopscience.iop.org
Abstract The Krawak Springs is a source of springs from the cracks of river rocks in the
middle of a teak forest in Guwoterus Village, Montong District, Tuban. This spring is a source …

Application of Very Low Frequency (VLF) Method for Underground River Estimation in Donorojo Sub-District, Pacitan

AS Bahri, KN Rochmah, MHM Fajar… - INDONESIAN …, 2024 - jurnal.uns.ac.id
Pacitan is included in the Gunung Sewu karst area in the Southern Mountain Zone, and
carbonate rocks dominate the constituent rocks. Karst has a unique drainage system …

Aykırı değerler içeren VLF verilerinin süzgeçlenmesinde budanmış ortalama, Empirik Mod Ayrışımı ve dayanıklı regresyon yöntemlerinin karşılaştırılması

MA Üge, MS Arslan - Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen … - dergipark.org.tr
Çok Düşük Frekans (VLF) elektromanyetik yöntem, yeraltının sığ iletkenlik dağılımının
belirlenmesi için sıklıkla uygulanır. Toplanan VLF verileri genelde aperiyodiktir ve bu …